There was a strong surface warming between the 1890s and the 1940s, followed by a pronounced cooling (and warnings of a catastrophic ice age by some of the same calamitologists who now claim disastrous warming) from the 1940s to the 1970s, then rising temperatures again from the 1970s to today. (Source: James Glassman and Sallie Baliunas, The Weekly Standard, June 25, 2001)